Datasheet

70HF(R) Series
7
Bulletin I20202 rev. A 05/98
www.irf.com
Fig. 11 - Forward Voltage Drop Characteristics
Fig. 9 - Maximum Non-Repetitive Surge Current Fig. 10 - Maximum Non-Repetitive Surge Current
30 0
40 0
50 0
60 0
70 0
80 0
90 0
1000
1100
110100
Peak Half Sine Wave Forward Current (A)
Number Of Equal Amplitude Half Cycle Current Pulses (N)
70HF(R) Series
Initial T = T Max.
@ 60 Hz 0.0083 s
@ 50 Hz 0.0100 s
At Any Rated Load Condition And With
Rated V Applied Following Surge.
RRM
J
J
200
300
400
500
600
700
800
900
1000
1100
1200
0.01 0.1 1
Peak Half Sine Wave Forward Current (A)
Pulse Train Duration (s)
Maximum Non Repetitive Surge Current
70HF(R) Series
Initial T = T Max.
No Voltage Reapplied
Rated V Reapplied
RRM
Versus Pulse Train Duration.
JJ
1
10
100
1000
00.511.522.5
3
T = 25°C
J
Instantaneous Forward Current (A)
Instantaneous Forward Voltage (V)
T = T Max.
J J
70HF(R) Series
Fig. 12 - Thermal Impedance Z
thJC
Characteristics
0.001
0.01
0. 1
1
10
0.0001 0.001 0.01 0.1 1 10
Square Wave Pulse Duration (s)
thJC
Transient Thermal Impedance Z (K/W)
Steady State Value
R = 0.45 K/W
(DC Operation)
thJC
70HF(R) Series